Game Mode List

Game Mode Example Notes
arena_1cp arena_lumberyard Arena, but with 1 Control Point that opens after 60 seconds
arena_2cp arena_byre Arena, but with 2 Control Points that are open from the start
ctf_standard ctf_2fort It's just Capture the Flag, fun is infinite in this game mode
ctf_mannpower ctf_hellfire Capture the Flag, but with the powerups of Mannpower
ctf_reverse ctf_crasher Capture the Flag, but you have to escort the Intelligence to the enemy base
cp_1cp cp_cloak It's exactly like KOTH, the only difference is that when you cap you automatically win, and also it takes forever to cap... Don't blame me, Valve created this game mode
cp_3cp cp_powerhouse Symmetric Control Point, with 3 Control Points
cp_5cp cp_well Symmetric Control Point, with 5 Control Points
cp_linear_1s_2cp cp_gorge Attack/Defense, with 1 Stage with 2 Control Points
cp_linear_1s_3cp cp_mercenarypark Attack/Defense, with 1 Stage with 3 Control Points
cp_linear_2s_6cp cp_snowplow Attack/Defense, with 2 Stages and each one with 3 Control Points
cp_linear_3s_6cp cp_dustbowl Attack/Defense, with 3 Stages and each one with 2 Control Points
cp_linear_3s_6cp_open cp_frostwatch Attack/Defense, with 3 Stages and each one with 2 Control Points, but on Stage 2, both Control Points are available for capture at the same time
cp_linear_dossier_single cp_carrier Attack/Defense, but to capture you need to bring the intel into the control point, with 1 stage
cp_linear_dossier_multi ctf_haarp Attack/Defense, but to capture you need to bring the intel into the control point, with 3 stages
cp_centralized cp_steel There is various Control Points for BLU to cap, but only the last one is necessary to win and it's always open
cp_centralized_koth cp_sulfur There is various Control Points for BLU to cap, but only the last one is necessary to win and it's always open, this one works like a KOTH in wich RED and BLU have a countdown
cp_domination cp_standin_final Both teams have to cap all 3 Control Points
cp_pyramid cp_gravelpit BLU must capture A + B to capture C, and RED must defend
cp_medieval cp_degrootkeep Basically the same as the last one, but with only melee weapons, and there is a small timer for the last Control Point
koth_example koth_viaduct It's just King of the Hill, by default the timer is set to 3 minutes, but there is maps in the game with other times, like 5 minutes (Los Muertos) or 7 minutes (Ghost Fort)
mvm_example mvm_bigrock It's just Mann vs. Machine, this one already came with the Source SDK, so thank you Valve!
mvm_gates mvm_mannhattan Mann vs. Machine, but with gates that robots will try to capture
pass_example pass_brickyard It's just PASS Time, thanks to 14Bit for their PASS Prefab!
pl_1s_3cp pl_rumford_event Payload, with 1 Stage with 3 Control Points
pl_1s_4cp pl_upward Payload, with 1 Stage with 4 Control Points
pl_1s_4cp_chew pl_frontier_final Basically the same as the last one, but with the Li'l Chew Chew cart model
pl_1s_5cp pl_pier Payload, with 1 Stage with 5 Control Points
pl_2s_5cp pl_cactuscanyon Payload, with 2 Stages with 2 Control Points on Stage 1, and 3 Control Points in Stage 2
pl_3s_6cp pl_hoodoo_final Payload, with 3 Stages and each one with 2 Control Points
pl_3s_7cp pl_goldrush Payload, with 3 Stages with 2 Control Points on Stage 1 and 2, and 3 Control Points in Stage 3
plr_single plr_hightower Payload Race, with 1 Stage
plr_multi plr_pipeline Payload Race, with 3 Stages
pd_example pd_watergate It's just Player Destruction, thanks to Egan for their PD Prefab!
rd_example rd_asteroid It's just Robot Destruction, thanks to worMatty for their RD Prefab!
sd_example sd_doomsday It's just Special Delivery, now includes the rocket and elevator!
tc_example tc_hydro It's just Territorial Control, thanks to 14Bit for their TC Prefab!
vsh_example vsh_tinyrock It's just VS Saxton Hale, but now it's official. You can check the official manual of the mode here!
zi_example zi_atoll It's just Zombie Infection, not much else to say...

Note: I also made an extended list with all the maps and game modes that you can check here.